This workshop service repair manual covers the Volvo AQ145 marine engine, an inline 4-cylinder unit with a displacement of 2.3 liters. Known for its robust cast iron engine block and reliable performance, this engine typically produces approximately 140-145 horsepower. It features a carburetor fuel system and a distributor-based ignition system, coupled with an inboard engine and outdrive configuration that commonly utilizes a marine gearbox with three forward gears and reverse. The engine is designed for raw water cooling, with an option for a closed cooling system, making it a dependable choice for a range of marine applications.

This comprehensive English-language manual provides essential information for the maintenance and repair of your Volvo AQ145 engine. It details critical procedures for lubrication, including recommended oil types and capacities, as well as information on the cooling system. Technical specifications, such as bore, stroke, and compression ratio, are included to aid in diagnostics and component identification. This resource is designed to assist owners, mechanics, and technicians in ensuring the optimal performance and longevity of the marine engine through clear instructions and detailed technical data.